WATERSMEET, MICHIGAN

Period of Record General Climate Summary - Growing Degree Days

Station:(208680) WATERSMEET US FOREST
From Year=1948 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 0 1 12 107 371 622 787 725 442 199 16 1 3283
40 S 0 1 13 120 491 1113 1900 2625 3067 3266 3282 3283 3283
45 M 0 0 4 56 246 473 632 570 304 111 5 0 2403
45 S 0 0 4 60 306 780 1412 1982 2286 2397 2402 2403 2403
50 M 0 0 1 26 148 332 477 416 188 53 2 0 1644
50 S 0 0 1 27 175 507 984 1400 1589 1642 1644 1644 1644
55 M 0 0 0 10 78 205 326 271 101 22 0 0 1015
55 S 0 0 0 10 89 294 621 892 992 1015 1015 1015 1015
60 M 0 0 0 3 36 108 191 149 46 7 0 0 540
60 S 0 0 0 3 39 147 338 488 533 540 540 540 540
Corn Growing Degree Days
50 M 0 1 10 83 253 397 506 461 268 122 10 0 2112
50 S 0 1 11 94 347 744 1251 1712 1980 2101 2111 2112 2112
M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu